This application is only provided for users' personal health management. It is used in conjunction with a portable heart rate monitor to record daily measurement results. Users can choose to upload the data to the cloud for analysis and obtain more detailed measurement information. *Disclaimer This App and the accompanying portable heart rate monitor have no medical purposes and should not be used as a substitute for professional medical diagnosis. They are not designed for the diagnosis of diseases or other medical conditions, and are not suitable for the treatment, alleviation, medical care, or prevention of any symptoms or diseases. Please consult a healthcare professional before making any health-related decisions.